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Author: Brage Golding Publisher: Springer Science & Business Media ISBN: 1468447335 Category : Science Languages : en Pages : 420
Book Description
In recent years the physics of disordered systems has been one of the most active and fruitful areas of research in condensed matter science. In contrast to the considerable attention paid by conferences, schools and workshops to the static and structural aspects of glasses, there has been no forum devoted primarily to the dynamic and energetic aspects of amorphous solids. The NATO Workshop on Coherence and Energy Transfer in Glasses was organized to address this deficiency. The intent was to bring together in an intense and interactive environment, experts in several rather disparate subfields relating to the dynamics and energetics of disordered systems. This volume represents the Proceedings of that Workshop, which took place in September 1982 at Clare College of Cambridge University. Forty-three scientists from eight NATO countries participated. These included representatives from universities and industrial laboratories, as well as government research institutions. The meeting was organized into eight formal sessions and one informal session devoted entirely to unstructured discussion. Each formal session featured two comprehensive lectures. An additional 60 to 90 minutes was devoted in each session to discussions and contributions related to the lectures. Since only about 60% of the session time was devoted to formal presentations, the discussions formed an equally important part of the workshop. The chairmen and discussion leaders - as well as the workshop participants themselves - brought forth lively and illuminating discussions for each session.
Author: Brage Golding Publisher: Springer Science & Business Media ISBN: 1468447335 Category : Science Languages : en Pages : 420
Book Description
In recent years the physics of disordered systems has been one of the most active and fruitful areas of research in condensed matter science. In contrast to the considerable attention paid by conferences, schools and workshops to the static and structural aspects of glasses, there has been no forum devoted primarily to the dynamic and energetic aspects of amorphous solids. The NATO Workshop on Coherence and Energy Transfer in Glasses was organized to address this deficiency. The intent was to bring together in an intense and interactive environment, experts in several rather disparate subfields relating to the dynamics and energetics of disordered systems. This volume represents the Proceedings of that Workshop, which took place in September 1982 at Clare College of Cambridge University. Forty-three scientists from eight NATO countries participated. These included representatives from universities and industrial laboratories, as well as government research institutions. The meeting was organized into eight formal sessions and one informal session devoted entirely to unstructured discussion. Each formal session featured two comprehensive lectures. An additional 60 to 90 minutes was devoted in each session to discussions and contributions related to the lectures. Since only about 60% of the session time was devoted to formal presentations, the discussions formed an equally important part of the workshop. The chairmen and discussion leaders - as well as the workshop participants themselves - brought forth lively and illuminating discussions for each session.
Author: Paul A. Fleury Publisher: Springer ISBN: Category : Science Languages : en Pages : 448
Book Description
In recent years the physics of disordered systems has been one of the most active and fruitful areas of research in condensed matter science. In contrast to the considerable attention paid by conferences, schools and workshops to the static and structural aspects of glasses, there has been no forum devoted primarily to the dynamic and energetic aspects of amorphous solids. The NATO Workshop on Coherence and Energy Transfer in Glasses was organized to address this deficiency. The intent was to bring together in an intense and interactive environment, experts in several rather disparate subfields relating to the dynamics and energetics of disordered systems. This volume represents the Proceedings of that Workshop, which took place in September 1982 at Clare College of Cambridge University. Forty-three scientists from eight NATO countries participated. These included representatives from universities and industrial laboratories, as well as government research institutions. The meeting was organized into eight formal sessions and one informal session devoted entirely to unstructured discussion. Each formal session featured two comprehensive lectures. An additional 60 to 90 minutes was devoted in each session to discussions and contributions related to the lectures. Since only about 60% of the session time was devoted to formal presentations, the discussions formed an equally important part of the workshop. The chairmen and discussion leaders - as well as the workshop participants themselves - brought forth lively and illuminating discussions for each session.
Author: Baldassare Di Bartolo Publisher: Springer Science & Business Media ISBN: 1468454757 Category : Science Languages : en Pages : 439
Book Description
This book presents an account of the course "Disordered Solids: Structures and Processes" held in Erice, Italy, from June 15 to 29, 1987. This meeting was organized by the International School of Atomic and Molecular Spectroscopy of the "Ettore Majorana" Centre for Scientific Culture. The objective of this course was to present the advances in physical modelling, mathematical formalism and experimental techniques relevant to the interpretation of the structures of disordered solids and of the physical processes occurring therein. Traditional solid-state physics treats solids as perfect crystals and takes great advantage of their symmetry, by means of such mathematical formalisms as the reciprocal lattice, the Brillouin zone, and the powerful tools of group theory. Even if in reality no solid is a perfect crystal, this theoretical approach has been of great usefulness in describing solids: deviations from perfect order have been treated as perturbations of the ideal model. A new situation arises with truly disordered solids where any vestige of long range order has disappeared. The basic problem is that of describing these systems and gaining a scientific understanding of their physical properties without the mathematical formalism of traditional solid state physics. While some of the old approaches may occasionally remain valid (e. g. chemical bonding approach for amorphous solids), the old ways will not do. Disorder is not a perturbation: with disorder, something basically new may be expected to appear.
Author: I. Zschokke Publisher: Springer Science & Business Media ISBN: 9400946503 Category : Science Languages : en Pages : 279
Book Description
During the last fifteen years the field of the investigation of glasses has experienced a period of extremely rapid growth, both in the development of new theoretical ap proaches and in the application of new experimental techniques. After these years of intensive experimental and theoretical work our understanding of the structure of glasses and their intrinsic properties has greatly improved. In glasses we are con fronted with the full complexity of a disordered medium. The glassy state is characterised not only by the absence of any long-range order; in addition, a glass is in a non-equilibrium state and relaxation processes occur on widely different time scales even at low temperatures. Therefore it is not surprising that these complex and novel physical properties have provided a strong stimulus for work on glasses and amorphous systems. The strikingly different properties of glasses and of crystalline solids, e. g. the low temperature behaviour of the heat capacity and the thermal conductivity, are based on characteristic degrees of freedom described by the so-called two-level systems. The random potential of an amorphous solid can be represented by an ensemble of asymmetric double minimum potentials. This ensemble gives rise to a new class of low-lying excitations unique to glasses. These low-energy modes arise from tunneling through a potential barrier of an atom or molecule between the two minima of a double-well.
Author: Robert Fairman Publisher: Elsevier ISBN: 0080541054 Category : Science Languages : en Pages : 323
Book Description
Chalcogenide glass is made up of many elements from the Chalcogenide group. The glass is transparent to infrared light and is useful as a semiconductor in many electronic devices. For example, chalcogenide glass fibers are a component of devices used to perform laser surgery. The properties of chalcogenide glass result not only from their chemical composition and atomic structure, but also from the impact of numerous external factors. A comprehensive survey is presented of the properties of chalcogenide glass under various external impacts. Practical recommendations are presented for a wide range of applications. Part II is the second part of a three-volume work within the Semiconductors and Semimetals series.* The first collective monograph written by Eastern European scientists on the electrical and optical properties of chalcogenide vitreous semiconductors (CVS).* Contributions by B.G. Kolomiets, who discovered the properties of chalcogenide glass in 1955!* Provides objective evidence and discussion by authors from opposing positions.
Author: Aaron B. Budgor Publisher: Springer ISBN: 3540474331 Category : Science Languages : en Pages : 374
Book Description
In June 1984 a conference on visible and IR tunable solid-state lasers was held in La Jolla, California. The proceedings were published as the first volume of this series, Tunable Solid State Lasers *. The emphasis of this meeting focused on discerning unified themes in the generic areas of: - Laser host/dopant identification and growth procedures, - Theoretical analysis to elucidate fundamental tunable laser principles, - Experimental investigations on laser spectroscopy to which theoretical analyses and models can be anchored, and - Auxiliary technology developments in efficient laser pumping sources (diodes, ftashlamps). Subsequent to the La Jolla conference, two topical meetings were held, co-sponsored by the Lasers and Electro-Optics Society of the Institute of Electrical and Electronics Engineers, and the Optical Society of America (OSA). The contents of Tunable Solid-State Lasers II comprise the pro ceedings of the second of these two, held at Rippling River Resort, Zigzag, Oregon, June 4-6, 1986. In addition to the four areas of attention in the La Jolla meeting, pa pers on color-center and new rare-earth lasers, and on nonlinear frequency shifting were also given. In a fashion similar to the previous meetings, the informal atmosphere of the conference and meeting site was conducive to constructive interaction among the attendees. A total of 54 papers were scheduled for presentation, 20 of which were invited and 34 contributed.
Author: Xuesheng Chen Publisher: World Scientific ISBN: 981281096X Category : Science Languages : en Pages : 625
Book Description
This book describes advances in both experimental and theoretical treatments in the field of energy transfer processes that are relevant to various fields, such as spectroscopy, laser technology, phosphors, artificial solar energy conversion, and photobiology. It presents the principles and available techniques through specific examples. In addition, it examines current and possible applications, including the most recent developments, and projects future advances and research possibilities in the field. Contents: Fundamental Interactions Leading to Energy Transfer (B Di Bartolo); Energy Transfer Processes in Atoms and Molecules (W DemtrAder et al.); Advances in the Techniques for the Study of Energy Transfer (D Hulin); Upconversion Phenomena with Laser Applications (X Chen); New Applications of Ultrafast Spectroscopy (J M Hvam); Efficient Solid State Lasers (N P Barnes); Emission Efficiency and Energy Transfer in Color Centers at High Concentrations (G Baldacchini); Four-Wave Mixing Studies of Energy Transfer Processes (G Boulon); Upconventional Light Emissions in Rare-Earth Doped Solids (F Auzel); Photonic Molecular and Supramolecular Devices (J M Lehn); Reflections on the Theory of Everything (G Costa); Earthquakes, Measurements, and Mitigation of Seismic Risk (R Console); Site Selectivity of Defects in IIIOCoV Compounds by Local Mode Spectroscopy and Model Calculations (D N Talwar); The General Non-Radiative Energy Transfer Master Equations for Crystalline Materials, the Exact Solution and Current Modeling (L A D az-Torres et al.); and other papers. Readership: Researchers and graduate students in the fields of lasers and optics."
Author: R. Cundall Publisher: Springer Science & Business Media ISBN: 1475716346 Category : Science Languages : en Pages : 767
Book Description
At the time that the editors conceived the idea of trying to organize the meeting on which the contents of this volume are based and which became, in March 1980, a NATO Advanced Study Institute, the techniques of time-resolved fluorescence spectroscopy, in both the nanosecond and sub-nanosecond time-domains, might reasonably have been said to be coming of age, both in their execution and in the analysis and interpretation of the results obtained. These techniques, then as now, comprised mainly a number of pulse methods using laser, flash-lamp or, most recently, synchrotron radiation. In addition, significant developments in the more classical phase approach had also rendered that method popular, utilizing either modulation of an otherwise continuous source or, again recently, the ultra-rapid pulse rate attainable with a synchrotron source. In general terms, time-resolved fluorescence studies are capable, under appropriate conditions, of supplying direct kinetic information on both photophysics and various aspects of molecular, macromolecular and supramolecular structure and dynamics. The nanosecond and sub-nanosecond time-scales directly probed render these techniques particularly appropriate in studying relaxation and fluctuation processes in macromolecules, particularly biopolymers (e. g. proteins, nucleic acids), in supramolecular assemblies such as cell membranes, and in a variety of relatively simpler model systems.
Author: Brage Golding
Author: Brage Golding
Author: Paul A. Fleury
Author: Paul A. Fleury
Author: Baldassare Di Bartolo
Author: I. Zschokke
Author: Robert Fairman
Author: 国立国会図書館 (Japan)
Author: Aaron B. Budgor
Author: Xuesheng Chen
Author: R. Cundall